This place was EXACTLY as described in the listing. It was VERY clean and the air was fresh (unlike some rentals). The location was perfect: one block from BTS NANA, one BTS stop from a major multi-level shopping mall (Terminal 21) and connection with the train system (airport access), walking distance to nightlife, street food vendors, restaurants, taxis, tuk-tuks (my favorite mode of transport). Security is 24/7 and courteous (all Thai people seem to be that way).
The wifi was great here. The "superhosts" (Danai & BicGy) were always accessible and helpful. The negotiated rental for a little more than a month was quite reasonable.
I'm now looking forward to my next stay at PSJ Penthouse.